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Volker Hederich

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  • Cologne, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Anthraquinone dyestuffs
    • Patent number RE29577
    • Issue date Mar 14, 1978
    • Bayer Aktiengesellschaft
    • Volker Hederich
    • 260 - Chemistry of carbon compounds
  • Information Patent Grant

    1-Amino-2-(bromophenoxy-alkoxy)-4-hydroxy anthraquinone dyestuffs
    • Patent number 4,036,862
    • Issue date Jul 19, 1977
    • Bayer Aktiengesellschaft
    • Volker Hederich
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Anthraquinone dyestuffs
    • Patent number 4,035,398
    • Issue date Jul 12, 1977
    • Bayer Aktiengesellschaft
    • Friedrich Wilhelm Krock
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Polycyclic dyestuffs
    • Patent number 4,024,144
    • Issue date May 17, 1977
    • Bayer Aktiengesellschaft
    • Manfred Groll
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Anthraquinone dyestuffs
    • Patent number 3,963,763
    • Issue date Jun 15, 1976
    • Bayer Aktiengesellschaft
    • Volker Hederich
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Anthraquinone dyestuffs
    • Patent number 3,959,315
    • Issue date May 25, 1976
    • Bayer Aktiengesellschaft
    • Volker Hederich
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Quinophthalone dyestuffs
    • Patent number 3,932,419
    • Issue date Jan 13, 1976
    • Bayer Aktiengesellschaft
    • Manfred Groll
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...